Can not update Cookie 5.8 to Cookie 5.8.1 in AppStore!

Can not update Cookie 5.8 to Cookie 5.8.1 in AppStore!
It shows me that this the program was purchased on another computer and I must enter my apple account Login and Password in order to enable Cookie 5.8.1 on my computer. I enter but it ask me to do that again and again. Please help.
Regards
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Same problem. I can't launch Cookie 5 since I downloaded the update to the Mac Appstore. I am asked again and again for my login and my access code. Uninstallation and reinstallation are useless.
Thanks for a quick help !

the only fix will be to either use the trial version until v5.8.2 is available in the Mac App Store.... or what till Apple reviews and releases it.

so sorry guys,
this bug shouldn't have even made it through Apple review, they can't have even opened it....
but the blame is definitely all mine... I uploaded it late last night, when perhaps I should have had a sleep first.

Same problem but just bought Cookie 5, it was working fine (I'm a longterm Cookie 4 user, rather annoyed I had to upgrade since the Safari cookies just stopped working) I got the update alert, I updated to 5.8.1 and now I get:

"“Cookie 5” is damaged and can’t be opened. Delete “Cookie 5” and download it again from the App Store."

Tried that, it doesn't fix it. Thinking I should ask for a refund from Apple...this is ridiculous.

I'm having this same problem, even though it's several hours after you posted that an update had been uploaded. In addition to the error message that Cookie is damaged (delete & re-download, which didn't work); when I do try to re-download I get a message that Cookie was purchased on another computer, and I should sign in w/those credentials. Cookie was definitely downloaded on this computer and signing in again doesn't help the situation.

Same problem as the above poster. I did try to use my old sign in (and later new sign in also) with no luck. It shows in the app store as purchased and downloaded, but keeps asking for the username and password.
What to do?

Same problem here.
Thank you for the quick action to address the issue. Will survive somehow while waiting for the update.
Also would like to take the opportunity to compliment on your App as I find it excellent!